SFP3000 LVM-24 does not charge from solar panels

[Skottie]

Hi, I am having an issue with my Growatt sfp3000 LVM-24

My setup is two Jinko 465W panels in series (=80V) and a lithium 24v battery with BMS and grid as backup.

I have just started the system up after winter. Now it does not to wake up the panels in the morning and it continues to use the grid even though the sun is up and panels are giving 80V/400W. If I cut off the grid or restart it will recognize tha panels and start charging from the sun as it should.

I hope you can help - I have listed my settings below - thanks

Menu settings:

1 = SOL
2 = 20A
3 = APL
4 = SdS
5 = US2
6 = LtE
7 = Ltd
8 = 230V
9 = 50htz
10 = 2
11 = 20A
12 = 23,5V
13 = 27,0V
14 = CSO
18 = byE
19 = 29,2
20 = 29,2
21 = 22,0
22 = SbE

 

[sunshine_eggo]

is 19 bulk?
20 float?

If so, those shouldn't be the same. If LFP, 29.2 is unnecessarily high unless you want to get charged as fast as possible, like with a generator. Floating at 29.2 will damage LFP.

Additionally, there are many cases on this website where having bulk/float the same triggers odd behavior like failing to start in the morning and/or failing to drop to float.

Recommend you reduce bulk to 28.4 and float to 27. It may take about 30 minutes longer to get fully charged.